EP2470632B1 - Improved washing performance using radical traps - Google Patents

Improved washing performance using radical traps Download PDF

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Publication number
EP2470632B1
EP2470632B1 EP10744954.8A EP10744954A EP2470632B1 EP 2470632 B1 EP2470632 B1 EP 2470632B1 EP 10744954 A EP10744954 A EP 10744954A EP 2470632 B1 EP2470632 B1 EP 2470632B1
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Prior art keywords
red
stains
dyes
use according
blue
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German (de)
French (fr)
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EP2470632A1 (en
Inventor
Christian Kropf
Andreas Buhl
André HÄTZELT
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Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0084—Antioxidants; Free-radical scavengers
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D11/00—Special methods for preparing compositions containing mixtures of detergents
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2093—Esters; Carbonates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/395—Bleaching agents

Definitions

  • the present invention relates to the use of radical scavengers in detergents and cleaners to improve cleaning performance, particularly with respect to stains containing polymerizable dyes.
  • a similar problem also exists for bleach-free color detergents in which the bleaching agent is omitted in order to protect the dyes in the textile and to prevent their bleaching.
  • the washing process In the absence of the bleaching agent, it is aggravating that instead of removing the soils normally removed by the bleaching agent, the washing process often intensifies and / or worsens the removability of the soiling, not least due to initiated chemical reactions attributable, for example, in the polymerization of certain dyes contained in the stains.
  • the polymerizable substances are, above all, polyphenolic dyes, preferably flavonoids, in particular from the class of anthocyanidins or anthocyanins.
  • the stains may in particular be red wine stains or spots of fruits or vegetables containing red and / or blue dyes, in particular polyphenolic dyes, especially those from the class of anthocyanidins or anthocyanins.
  • the stains may have been caused in particular by food products or beverages containing corresponding dyes.
  • radical scavengers in detergents and cleaners has already been described in the prior art.
  • the use of radical scavengers described in the prior art serves to stabilize contained components which can be inactivated and / or decomposed by oxidative degradation.
  • EP1144580 describes the use of free-radical scavengers in transparent packaging to prevent damage to UV light by components contained therein.
  • aqueous liquid detergents which contain alkoxylated carboxylic acid esters and, for their hydrolysis stability improvement, radical scavengers, among which n-propyl gallate is mentioned.
  • a first object of the present invention is therefore the use of radical scavengers as defined below in detergents and cleaners to improve the cleaning performance.
  • polymerizable dyes in detergents to improve the cleaning performance, which consists in an improved removal of stains containing polymerizable substances, especially polymerizable dyes, wherein the polymerizable dyes are preferably polyphenolic dyes, in particular flavonoids, especially anthocyanidins or anthocyanins or oligomers of these compounds.
  • the polymerizable dyes are preferably polyphenolic dyes, in particular flavonoids, especially anthocyanidins or anthocyanins or oligomers of these compounds.
  • red- to blue-colored stains in particular red wine stains or spots of fruits or vegetables which contain red to blue-colored dyes, in particular stains caused by food products or drinks containing corresponding dyes.
  • red to blue stains are to be understood according to the invention, which may have a color from the color spectrum of red to blue.
  • stains in the colors red or blue stains in intermediate colors, in particular in violet, purple, purple or pink, as well as stains which have a red, violet, purple, purple, pink or blue tint, are therefore not considered even having to completely consist of this color.
  • the said colors may also be light or dark in each case, i. especially light and dark red as well as light and dark blue are possible colors.
  • the stains to be removed according to the invention can be caused in particular by cherries, red grapes, pomegranate, aronia, plums, sea-buckthorn, acai, berries, especially red or black currants, elderberries, blackberries, raspberries, blueberries, cranberries, strawberries or blueberries, red cabbage, Blood orange, aubergine, black carrot, red meat or blue meat potato or red onion.
  • R is a linear or branched radical selected from hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl and tetradecyl.
  • the radical scavenger is used according to the invention preferably in an amount of 0.001 to 10 wt.%, In particular in an amount of 0.01 to 5 wt .-%, particularly preferably in an amount of 0.05 to 2 Ges .-%.
  • the washing or cleaning agent may be present in any of the prior art and / or any suitable administration form.
  • These include, for example, solid, powdery, liquid, gelatinous or pasty dosage forms, optionally also of several phases, compressed or uncompressed; further include, for example: extrudates, granules, tablets or pouches, packed both in large containers and in portions.
  • the detergent is in a particularly preferred embodiment, a liquid laundry detergent.
  • the detergent is a powdered color detergent, ie a powdered textile detergent for dyed textiles.
  • the textile detergent is preferably a liquid laundry detergent and / or a laundry detergent that is free from bleaches.
  • the laundry detergents and detergents in which the use according to the invention is carried out may additionally comprise customary other constituents of detergents and cleaners, in particular laundry detergents, in particular selected from the group of builders, surfactants, polymers, enzymes, textile-softening substances, in particular esterquats, protein hydrolysates, electrolytes, pH adjusters, fluorescers, hydrotopes, foam inhibitors, silicone oils, anti redeposition agents, optical brighteners, grayness inhibitors, shrinkage inhibitors, anti-crease agents, dye transfer inhibitors, antimicrobial agents, germicides, fungicides, antioxidants, antistatic agents, ironing auxiliaries, repellents and impregnating agents, Swelling and anti-slip agents, UV absorbers, disintegration aids, fragrances, dyes and perfume carriers.
  • laundry detergents in particular selected from the group of builders, surfactants, polymers, enzymes, textile-softening substances, in particular esterquats, protein hydrolysates, electrolytes, pH adjusters,
  • nonionic, anionic, cationic and / or amphoteric surfactants can be used as surfactants.
  • proteases amylases, lipases, hemicellulases, cellulases, perhydrolases and / or oxidoreductases can be used as enzymes.
  • Example 1 Use of propyl gallate (PG) to improve the washing performance
  • the evaluation was carried out by color distance measurement according to the Lab values and the Y values calculated therefrom as a measure of the brightness.
  • the following table shows the dY values resulting from the difference Y (after washing) - Y (before washing) for the 5 above stains.
  • cherry Blackcurrant bilberry Red grape red wine FWM 35.7 50 27.6 52.8 40.6 FWM + PG 41.7 54 33.3 62 54.5
  • the dY values with addition of PG are greater for all stains than with the pure FWM, which corresponds to a higher degree of whiteness and thus improved stain removal.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Biochemistry (AREA)
  • Detergent Compositions (AREA)

Description

Die vorliegende Erfindung betrifft die Verwendung von Radikalfängern in Wasch- und Reinigungsmitteln zur Verbesserung der Reinigungsleistung, insbesondere in Bezug auf Anschmutzungen, die polymerisierbare Farbstoffe enthalten.The present invention relates to the use of radical scavengers in detergents and cleaners to improve cleaning performance, particularly with respect to stains containing polymerizable dyes.

Während die Formulierung pulverförmiger, Bleichmittel enthaltender Wasch- und Reinigungsmittel heute keinerlei Probleme mehr bereitet, stellt die Formulierung stabiler flüssiger, Bleichmittel enthaltender Wasch- und Reinigungsmittel nach wie vor ein Problem dar.While the formulation of powdered, bleach-containing detergents and cleaners today no longer causes any problems, the formulation of stable liquid, bleach-containing detergents and cleaners is still a problem.

Aufgrund des Fehlens des Bleichmittels insbesondere in flüssigen Wasch- und Reinigungsmitteln werden solche Anschmutzungen, die normalerweise insbesondere aufgrund der enthaltenen Bleichmittel entfernt werden, entsprechend häufig nur in unzureichender Weise entfernt.Due to the lack of the bleaching agent, especially in liquid detergents and cleaners, such stains that are normally removed, in particular due to the bleach contained, are often removed only inadequate.

Ein ähnliches Problem besteht auch für Bleichmittel-freie Color-Waschmittel, bei denen das Bleichmittel weggelassen wird, um die Farbstoffe im Textil zu schonen und deren Ausbleichen zu verhindern.A similar problem also exists for bleach-free color detergents in which the bleaching agent is omitted in order to protect the dyes in the textile and to prevent their bleaching.

Bei Fehlen des Bleichmittels kommt erschwerend hinzu, dass anstatt der Entfernung der Anschmutzungen, die normalerweise durch das Bleichmittel entfernt werden, aufgrund des Waschvorgangs häufig im Gegenteil sogar eine Intensivierung und/oder Verschlechterung der Entfernbarkeit der Anschmutzung herbeigeführt wird, was nicht zuletzt auf initiierte chemische Reaktionen zurückzuführen ist, die beispielsweise in der Polymerisierung bestimmter in den Anschmutzungen enthaltener Farbstoffe bestehen können.In the absence of the bleaching agent, it is aggravating that instead of removing the soils normally removed by the bleaching agent, the washing process often intensifies and / or worsens the removability of the soiling, not least due to initiated chemical reactions attributable, for example, in the polymerization of certain dyes contained in the stains.

Derartige Probleme treten insbesondere bei Anschmutzungen auf, die polymerisierbare Farbstoffe enthalten. Es handelt sich hierbei zumeist um rot- bis blaufarbige Anschmutzungen. Bei den polymerisierbaren Substanzen handelt es sich vor allem um polyphenolische Farbstoffe, vorzugsweise um Flavonoide, insbesondere aus der Klasse der Anthocyanidine oder Anthocyane. Bei den Anschmutzungen kann es sich insbesondere um Rotweinflecken oder Flecken von Früchten oder Gemüse handeln, die rote und/oder blaue Farbstoffe, insbesondere polyphenolische Farbstoffe, vor allem solche aus der Klasse der Anthocyanidine oder Anthocyane, enthalten. Die Anschmutzungen können insbesondere durch Lebensmittelprodukte oder Getränke verursacht worden sein, die entsprechende Farbstoffe enthalten.Such problems occur especially with stains containing polymerizable dyes. These are mostly red to blue stains. The polymerizable substances are, above all, polyphenolic dyes, preferably flavonoids, in particular from the class of anthocyanidins or anthocyanins. The stains may in particular be red wine stains or spots of fruits or vegetables containing red and / or blue dyes, in particular polyphenolic dyes, especially those from the class of anthocyanidins or anthocyanins. The stains may have been caused in particular by food products or beverages containing corresponding dyes.

Erfindungsgemäß wurde nun überraschenderweise gefunden, dass durch Zugabe von Radikalfängern zu solchen Wasch- und Reinigungsmitteln die Reinigungsleistung des Wasch- oder Reinigungsmittels in Bezug auf solche Anschmutzungen deutlich verbessert werden kann.According to the invention, it has now surprisingly been found that by adding scavengers to such detergents and cleaning agents, the cleaning performance of the washing or cleaning agent can be significantly improved with respect to such soiling.

Der Einsatz von Radikalfängern in Wasch- und Reinigungsmitteln ist im Stand der Technik bereits beschrieben. Allerdings dient der im Stand der Technik beschriebene Einsatz der Radikalfänger zur Stabilisierung von enthaltenen Komponenten, die durch oxidativen Abbau inaktiviert und/oder zersetzt werden können.The use of radical scavengers in detergents and cleaners has already been described in the prior art. However, the use of radical scavengers described in the prior art serves to stabilize contained components which can be inactivated and / or decomposed by oxidative degradation.

So werden in EP0209228 , EP0668345 , EP0843001 , EP1001010 und EP1462564 Bleichmittel offenbart, die zur Stabilisierung von "Bleiche-labilen" Komponenten Radikalfänger enthalten.So be in EP0209228 . EP0668345 . EP0843001 . EP1001010 and EP1462564 Bleaching agents containing radical scavengers for stabilization of "bleach-labile" components.

In EP1144580 wird der Einsatz von Radikalfängern in transparenten Verpackungen zur Verhinderung der Schädigung von enthaltenen Komponenten durch UV-Licht beschrieben.In EP1144580 describes the use of free-radical scavengers in transparent packaging to prevent damage to UV light by components contained therein.

Auch in WO2006/128554 wird der Einsatz von Radikalfängern zum Schutz der enthaltenen Komponenten vor oxidativem Abbau offenbart.Also in WO2006 / 128554 discloses the use of radical scavengers to protect the contained components from oxidative degradation.

In US 2007/0066504 A1 sind wässrige Flüssigwaschmittel bekannt, die alkoxylierte Carbonsäureester und zu deren Hydrolysestabilitätsverbesserung Radikalfänger enthalten, unter denen auch n-Propylgallat genannt ist.In US 2007/0066504 A1 For example, aqueous liquid detergents are known which contain alkoxylated carboxylic acid esters and, for their hydrolysis stability improvement, radical scavengers, among which n-propyl gallate is mentioned.

Die Verwendung von Radikalfänger in Wasch- und Reinigungsmitteln zur Verbesserung der Reinigungsleistung ist im Stand der Technik jedoch noch nicht beschrieben.However, the use of scavengers in detergents to improve cleaning performance has not been described in the prior art.

Ein erster Gegenstand der vorliegenden Erfindung ist daher die Verwendung von unten definierten Radikalfängern in Wasch- und Reinigungsmitteln zur Verbesserung der Reinigungsleistung.A first object of the present invention is therefore the use of radical scavengers as defined below in detergents and cleaners to improve the cleaning performance.

Gegenstand der vorliegenden Erfindung ist die Verwendung von Radikalfängern der allgemeinen Formel (I)

Figure imgb0001
wobei

  • W für einen Rest -C(O)X oder -NLC(O)X steht,
  • X für einen Rest OR steht,
  • L für H oder C1-6-Alkyl steht,
  • R für einen linearen oder verzweigten C1-40-Alkylrest, insbesondere C4-20-Alkylrest, vor allem C6-14-Alkylrest, steht,
  • R1 und R5 für Wasserstoff stehen,
  • R2, R3 und R4 für Hydroxy stehen,
The present invention is the use of radical scavengers of the general formula (I)
Figure imgb0001
 in which
  • W is a radical -C (O) X or -NLC (O) X,
  • X stands for a remainder OR,
  • L is H or C 1-6 -alkyl,
  • R is a linear or branched C 1-40 -alkyl radical, in particular C 4-20 -alkyl radical, especially C 6-14 -alkyl radical,
  • R1 and R5 are hydrogen,
  • R2, R3 and R4 are hydroxy,

in Wasch- und Reinigungsmitteln zur Verbesserung der Reinigungsleistung, welche in einer verbesserten Entfernung von Anschmutzungen besteht, die polymerisierbare Substanzen, vor allem polymerisierbare Farbstoffe, enthalten, wobei es sich bei den polymerisierbaren Farbstoffen vorzugsweise um polyphenolische Farbstoffe, insbesondere um Flavonoide, vor allem um Anthocyanidine oder Anthocyane oder Oligomere dieser Verbindungen handelt. Es handelt sich hierbei vorzugsweise um rot- bis blaufarbige Anschmutzungen, insbesondere um Rotweinflecken oder Flecken von Früchten oder Gemüse, die rot- bis blaufarbige Farbstoffe enthalten, insbesondere auch um Anschmutzungen durch Lebensmittelprodukte oder Getränke, die entsprechende Farbstoffe enthalten.in detergents to improve the cleaning performance, which consists in an improved removal of stains containing polymerizable substances, especially polymerizable dyes, wherein the polymerizable dyes are preferably polyphenolic dyes, in particular flavonoids, especially anthocyanidins or anthocyanins or oligomers of these compounds. These are preferably red- to blue-colored stains, in particular red wine stains or spots of fruits or vegetables which contain red to blue-colored dyes, in particular stains caused by food products or drinks containing corresponding dyes.

Unter "rot- bis blaufarbigen Anschmutzungen" sind erfindungsgemäß Anschmutzungen zu verstehen, die eine Farbe aus dem Farbspektrum von rot bis blau besitzen können. Neben Anschmutzungen in den Farben rot oder blau kommen daher insbesondere Anschmutzungen in Zwischenfarben, insbesondere in violett, lila, purpurfarben oder rosa, als auch Anschmutzungen in Betracht, die eine rote, violette, lilafarbene, purpurfarbene, rosafarbene oder blaue Tönung aufweisen, ohne im Wesentlichen selbst komplett aus dieser Farbe bestehen zu müssen. Die genannten Farben können insbesondere auch jeweils hell oder dunkel sein, d.h. es kommen insbesondere hell- und dunkelrot sowie hell- und dunkelblau als mögliche Farben in Betracht. Die erfindungsgemäß zu entfernenden Anschmutzungen können insbesondere verursacht sein durch Kirschen, roten Trauben, Granatapfel, Aronia, Pflaumen, Sanddorn, Açai, Beeren, vor allem roten oder schwarzen Johannisbeeren, Holunderbeeren, Brombeeren, Himbeeren, Blaubeeren, Kranbeeren, Erdbeeren oder Heidelbeeren, Rotkohl, Blutorange, Aubergine, schwarzer Karotte, rotfleischiger oder blaufleischiger Kartoffel oder roter Zwiebel.By "red to blue stains" stains are to be understood according to the invention, which may have a color from the color spectrum of red to blue. Besides stains in the colors red or blue, stains in intermediate colors, in particular in violet, purple, purple or pink, as well as stains which have a red, violet, purple, purple, pink or blue tint, are therefore not considered even having to completely consist of this color. In particular, the said colors may also be light or dark in each case, i. especially light and dark red as well as light and dark blue are possible colors. The stains to be removed according to the invention can be caused in particular by cherries, red grapes, pomegranate, aronia, plums, sea-buckthorn, acai, berries, especially red or black currants, elderberries, blackberries, raspberries, blueberries, cranberries, strawberries or blueberries, red cabbage, Blood orange, aubergine, black carrot, red meat or blue meat potato or red onion.

Besonders bevorzugt steht R für einen linearen oder verzweigten Rest ausgewählt aus Hexyl, Heptyl, Octyl, Nonyl, Decyl, Undecyl, Dodecyl, Tridecyl und Tetradecyl.More preferably R is a linear or branched radical selected from hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl and tetradecyl.

Der Radikalfänger wird erfindungsgemäß vorzugsweise in einer Menge von 0,001 bis 10 Gew.%, insbesondere in einer Menge von 0,01 bis 5 Gew.-%, besonders bevorzugt in einer Menge von 0,05 bis 2 Ges.-%, eingesetzt.The radical scavenger is used according to the invention preferably in an amount of 0.001 to 10 wt.%, In particular in an amount of 0.01 to 5 wt .-%, particularly preferably in an amount of 0.05 to 2 Ges .-%.

Das Wasch- oder Reinigungsmittel kann hierbei In jeder nach dem Stand der Technik etablierten und/oder jeder zweckmäßigen Darreichungsform vorliegen. Dazu zählen beispielsweise feste, pulverförmige, flüssige, gelförmige oder pastöse Darreichungsformen, gegebenenfalls auch aus mehreren Phasen, komprimiert oder nicht komprimiert; ferner gehören beispielsweise dazu: Extrudate, Granulate, Tabletten oder Pouches, sowohl in Großgebinden als auch portionsweise abgepackt.The washing or cleaning agent may be present in any of the prior art and / or any suitable administration form. These include, for example, solid, powdery, liquid, gelatinous or pasty dosage forms, optionally also of several phases, compressed or uncompressed; further include, for example: extrudates, granules, tablets or pouches, packed both in large containers and in portions.

Die erfindungsgemäße Verwendung erfolgt hierbei in einer erfindungsgemäß bevorzugten Ausführungsform in einem Wasch- und Reinigungsmittel, das keine Bleichmittel enthält. Hiermit ist erfindungsgemäß vorzugsweise zu verstehen, dass das Mittel neben Bleichmitteln im engeren Sinne, also neben Wasserstoffperoxid oder Wasserstoffperoxid liefernden Substanzen, auch keine Bleichaktivatoren und/oder Bleichkatalysatoren enthält.The use according to the invention in this case takes place in a preferred embodiment according to the invention in a washing and cleaning agent which contains no bleaching agents. This is according to the invention preferably to be understood that the means in addition to bleaches in the strict sense, ie in addition to hydrogen peroxide or hydrogen peroxide-supplying substances, also contains no bleach activators and / or bleach catalysts.

Bei dem Waschmittel handelt es sich in einer besonders bevorzugten Ausführungsform um ein flüssiges Textilwaschmittel.The detergent is in a particularly preferred embodiment, a liquid laundry detergent.

Bei dem Waschmittel handelt es sich in einer weiteren besonders bevorzugten Ausführungsform um ein pulverförmiges Color-Waschmittel, also um ein pulverförmiges Textilwaschmittel für gefärbte Textilien.In another particularly preferred embodiment, the detergent is a powdered color detergent, ie a powdered textile detergent for dyed textiles.

Bei dem Textifwaschmittel handelt es sich hierbei vorzugsweise um ein flüssiges Textilwaschmittel und/oder um ein Textilwaschmittel, das frei von Bleichmitteln ist.The textile detergent is preferably a liquid laundry detergent and / or a laundry detergent that is free from bleaches.

Die Textilwaschmittel sowie die Wasch- und Reinigungsmittel, in denen die erfindungsgemäße Verwendung erfolgt, können darüber hinaus übliche sonstige Bestandteile von Wasch- und Reinigungsmitteln, insbesondere Textilwaschmitteln, enthalten, insbesondere ausgewählt aus der Gruppe der Gerüststoffe, Tenside, Polymere, Enzyme, textilweichmachenden Substanzen, insbesondere Esterquats, Proteinhydrolysate, Elektrolyte, pH-Stellmittel, Fluoreszenzmittel, Hydrotope, Schauminhibitoren, Silikonöle, Antiredepositionsmittel, optischen Aufheller, Vergrauungsinhibitoren, Einlaufverhinderer, Knitterschutzmittel, Farbübertragungsinhibitoren, antimikrobiellen Wirkstoffe, Germizide, Fungizide, Antioxidantien, Antistatika, Bügelhilfsmittel, Phobier- und Imprägniermittel, Quell- und Schiebefestmittel, UV-Absorber, Desintegrationshilfsmittel, Duftstoffe, Farbstoffe und Parfümträger.The laundry detergents and detergents in which the use according to the invention is carried out may additionally comprise customary other constituents of detergents and cleaners, in particular laundry detergents, in particular selected from the group of builders, surfactants, polymers, enzymes, textile-softening substances, in particular esterquats, protein hydrolysates, electrolytes, pH adjusters, fluorescers, hydrotopes, foam inhibitors, silicone oils, anti redeposition agents, optical brighteners, grayness inhibitors, shrinkage inhibitors, anti-crease agents, dye transfer inhibitors, antimicrobial agents, germicides, fungicides, antioxidants, antistatic agents, ironing auxiliaries, repellents and impregnating agents, Swelling and anti-slip agents, UV absorbers, disintegration aids, fragrances, dyes and perfume carriers.

Als Gerüststoffe können insbesondere Zeolithe, Silikate, Carbonate, organische Cobuilder und/oder -wo keine ökologischen Vorurteile gegen ihren Einsatz bestehen- auch Phosphate eingesetzt werden.As builders, in particular zeolites, silicates, carbonates, organic cobuilders and / or where there are no ecological prejudices against their use existing phosphates can be used.

Als Tenside können insbesondere nichtionische, anionische, kationische und/oder amphoteren Tenside eingesetzt werden.In particular nonionic, anionic, cationic and / or amphoteric surfactants can be used as surfactants.

Als Enzyme können insbesondere Proteasen, Amylasen, Lipasen, Hemicellulasen, Cellulasen, Perhydrolasen und/oder Oxidoreduktasen eingesetzt werden.In particular, proteases, amylases, lipases, hemicellulases, cellulases, perhydrolases and / or oxidoreductases can be used as enzymes.

Ausführungsbeispieleembodiments Beispiel 1: Verwendung von Propylgallat (PG) zur Verbesserung der WaschleistungExample 1: Use of propyl gallate (PG) to improve the washing performance

Es wurden Waschversuche an 5 verschiedenen Flecken, die auf polyphenolischen natürlichen Farbstoffen (Flavonoiden) beruhen, durchgeführt. Für die Flecken wurden Extrakte von Kirsche, schwarzer Johannisbeere, Heidelbeere, roter Traube und Rotwein verwendet. Die Fleckherstellung erfolgte maschinell durch Dosieren einer konstanten Menge einer verdünnten wässrigen Lösung der Extrakte auf Baumwollgewebe und anschließendes Trocknen. Für die Waschversuche wurde ein handelsübliches Flüssigwaschmittel (FWM) verwendet, gewaschen wurde bei 40°C in einer herkömmlichen Textilwaschmaschine bei 16°dH Wasserhärte. Es wurde eine 5fach-Bestimmung durchgeführt und anschließend der jeweilige Mittelwert ermittelt. Vom Waschmittel wurden jeweils 75 g dosiert, Propylgallat (PG) wurde on top in einer Menge von 1,7g zugegeben. Die Auswertung erfolgte über Farbabstandsmessung gemäß der Lab-Werte und der daraus berechneten Y-Werte als Maß für die Helligkeit. Die folgende Tabelle zeigt die dY-Werte, die sich aus der Differenz Y(nach dem Waschen) - Y(vor dem Waschen) ergeben, für die 5 oben genannten Flecken. Kirsche Schwarze Johannisbeere Heidelbeere Rote Traube Rotwein FWM 35,7 50 27,6 52,8 40,6 FWM+PG 41,7 54 33,3 62 54,5 Wash tests were performed on 5 different stains based on polyphenolic natural dyes (flavonoids). For the stains extracts of cherry, blackcurrant, blueberry, red grape and red wine were used. The stain was made by dosing a constant amount of a dilute aqueous solution of the extracts on cotton fabric and then drying. For the washing experiments, a commercial liquid detergent (FWM) was used, which was washed at 40 ° C in a conventional textile washing machine at 16 ° dH water hardness. A 5-fold determination was carried out and then the respective mean value was determined. The detergent was dosed with 75 g each, propyl gallate (PG) was added on top in an amount of 1.7 g. The evaluation was carried out by color distance measurement according to the Lab values and the Y values calculated therefrom as a measure of the brightness. The following table shows the dY values resulting from the difference Y (after washing) - Y (before washing) for the 5 above stains. cherry Blackcurrant bilberry Red grape red wine FWM 35.7 50 27.6 52.8 40.6 FWM + PG 41.7 54 33.3 62 54.5

Die dY-Werte bei Zusatz von PG sind für alle Flecken größer als mit dem reinen FWM, was einem höheren Weißgrad und somit einer verbesserten Fleckentfernung entspricht.The dY values with addition of PG are greater for all stains than with the pure FWM, which corresponds to a higher degree of whiteness and thus improved stain removal.

Claims (6)

  1. Use of radical traps of general formula (I)
    Figure imgb0003
     wherein
    W denotes a residue -C(O)X or -NLC(O)X,
    X denotes a residue OR,
    L denotes H or C1-6 alkyl,
    R denotes a linear or branched C1-40 alkyl residue, in particular C4-20 alkyl residue, especially C6-14 alkyl residue,
    R1 and R5 denote hydrogen,
    R2, R3 and R4 denote hydroxy,
    in washing and cleaning agents for improving cleaning performance, which improvement consists in improved removal of stains which contain polymerisable substances, especially polymerisable dyes.
  2. Use according to claim 1, characterised in that the polymerisable dyes are selected from polyphenolic dyes, in particular flavonoids, especially dyes of the class of the anthocyanidins or anthocyanins or oligomers of these compounds.
  3. Use according to claims 1 or 2, characterised in that the improved cleaning performance consists in improved removal of red- to blue-coloured stains, in particular of red wine stains or stains of fruit or vegetables which contain red- to blue-coloured dyes.
  4. Use according to one of claims 1 to 3, characterised in that the stains are selected from stains from cherries, red grapes, pomegranate, chokeberries, plums, sea buckthorn, açai, berries, especially redcurrants or blackcurrants, elderberries, blackberries, raspberries, blueberries, cranberries, strawberries or bilberries, red cabbage, blood orange, aubergine, black carrots, red-fleshed or blue-fleshed potatoes or red onions.
  5. Use according to one of claims 1 to 4, characterised in that the washing or cleaning agent contains no bleaching agents.
  6. Use according to one of the claims 1 to 5, characterised in that the washing agent is a liquid or pulverulent textile-washing agent.
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